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4x4 not working?

Discussion in 'Chevy Trucks' started by David Smith, Nov 5, 2003.

  1. David Smith

    David Smith Member
    Messages: 48

    I just tried out my 4-wheel drive today.
    I put it in 4-wheel high, and had my plow hooked-up.
    I tried pushing a car frame/body across bare cement, and I spun the right rear tire....now should this be happening when in 4-wheel drive?

    Also, in 4-wheel high, in reverse, I can spin the right rear tire just going over a 5" curb.

    What gives?

    Now, when I turn the tires they do that "thing" that 4x4's do when turning (wheel skip I guess you'd call it), which leads me to think that the 4-wheel drive is working, but I'm stumped why the right rear tire would spin so easily.....

    New transfer case, new transmission, rebuilt 350
    84 Chevy 4x4 2500HD
     
  2. vector6

    vector6 Senior Member
    Messages: 150

    open rear gears.. ?
     
  3. David Smith

    David Smith Member
    Messages: 48

    What's that mean???
     
  4. vector6

    vector6 Senior Member
    Messages: 150

    a non lock rear end... not posi traction, which would account for the single rear wheel spin,
    vrs both (locker)
     
    Last edited: Nov 5, 2003
  5. David Smith

    David Smith Member
    Messages: 48

    posi traction....I have 4-wheel drive.
    I am thinking maybe the actuator, or vacuum lines?
     
  6. vector6

    vector6 Senior Member
    Messages: 150

    if it's in 4wd and doing that skipping thing while turning.. the 4wd is working..

    as far as the wheel spin is this when your in 4wd or 2wd ?
     
  7. David Smith

    David Smith Member
    Messages: 48

    in 2 OR 4-wheel drive
    forward, OR reverse
     
  8. rsimpson04

    rsimpson04 Junior Member
    from CT
    Messages: 5

    rear spin

    Dave,

    Does the right rear spin a lot, or just chirp?
    The rear is not posi.

    If the right rear spins a lot and front does not hook up, start looking for the problem.

    If the rear chirps and then the front hooks up, I would not be too concerned.

    Recommend take out in dirt and give it a good hard throttle test.
    let me know results.

    I am an electronic tech retired from Navy with a major mechanical background, so I have played with many toys over the years and do not plan on stopping, so hopefully I can be of some assist.

    Rory
     
  9. vector6

    vector6 Senior Member
    Messages: 150

    ohh.. do you happen to have a grassy flat area , and some one to watch the truck from outside as you try it out ?

    this will definatly let you know if the 4wd is active..
     
  10. vector6

    vector6 Senior Member
    Messages: 150

    Re: rear spin


    this is where i was going..! lol
     
  11. rsimpson04

    rsimpson04 Junior Member
    from CT
    Messages: 5

    Re: Re: rear spin

    Hello Vector6,

    Would that be West (By God) Virginia?...lol

    I'm from Western NY originally but reside in N.E. CT due to Navy and decent follow on job still supporting our submarine fleet.

    I've met and worked with many good people during my Navy tour from West VA. I have an Uncle somewhat near there over near Roanaoke on Smith Mountain Lake. I need to go see him.

    Take care,

    Rory
     
  12. vector6

    vector6 Senior Member
    Messages: 150

    Re: Re: Re: rear spin

    yes... West (By God) Virginia..

    and im former Navy as well, from the HM community .(Helmineron, Helicopter mine sweeping)

    I was a hydraulics mechanic on MH53E's

    good to meet ya Rory..:waving:
     
  13. ratlover

    ratlover PlowSite.com Addict
    from IL
    Messages: 1,325

    You could have one front spinning and one rear spinning in a 4x4. You sure you wernt spinning a front tire also?

    Manual or auto hubs?
     
  14. David Smith

    David Smith Member
    Messages: 48

    auto hubs, only one tire spinning, and spinning fast (not chirping).
    I will try it on my gravel road with someone watching to see what happens.....
     
  15. wyldman

    wyldman Member
    Messages: 3,265

    If the transfer case is properly engaged,and sending power down the front driveshaft,then it sounds like you have a bad hub.Without a posi in the front,one bad hub will cause a no drive condition from the front wheels.

    Junk the suto hubs and get a set of Warn premium hubs.
     
  16. David Smith

    David Smith Member
    Messages: 48

    So I should replace the auto hubs with manual hubs then?
    Doesn't sound like something that I want to do....
     
  17. wyldman

    wyldman Member
    Messages: 3,265

    The auto hubs are garbage and unreliable,as you just found out.The Warn premium hubs are much stronger,and virtually trouble free.When you lock them,they are locked. :D
     
  18. EZSnow

    EZSnow Senior Member
    Messages: 205

    all it would take is one bad hub, right? in a open diff it would act like that tire has no traction, spin the easiest rear and the easiest (broken) front.

    Don't the hubs usually make some clicking/grinding as they fail/slip? I'd go manual if I were you... and if the autos on my 'duty ever fail, I will.
     
  19. wyldman

    wyldman Member
    Messages: 3,265

    Yes,all it takes is one bad hub,as all (most) front diffs are open,so the broken hub just spins,and no power is applied to the other side.

    The hubs will sometimes make noise if they have come apart inside.When they stick or sieze,they will make no noise at all.
     
  20. David Smith

    David Smith Member
    Messages: 48

    how difficult would it be to change from auto to manual hubs? and is this a one person (me) type of job?